( cliii ) 



Mr. Leonard Doncaster, M.A. — 



" Sex-limited Inheritance in Insects." 



An account of the inheritance of characters which show sex- 

 limited transmission in the Moth Abraxas grossulariata, and 

 the Fly Drosojjhila ampelophila. 



Prof. J. H. Comstock— 



" The Silk of Spiders and its Uses." 



A description of the different kinds of silk spun by spiders 

 and of the use of each kind. Illustrated by lantern slides 

 made from photo-micrographs of silk and from photographs 

 of webs. 



Dr. Ernest Olivier — 



" The necessity for the Latin tongue for Entomological 

 descriptions." 



During the session also the following exhibits were on view 

 in the University Museum : — 



Dr. F. A. Dixey. — Pierinae. Mr. H. Eltringham. — The 

 African Species of the Genus Acraea. Prof. Poulton and Mr. 

 A. H. Hamm. — Insects and their prey, with special reference 

 to the Courtship of the Empidae. Prof. Poulton. — Mimetic 

 Groups, 



At the final General Meeting on the afternoon of Friday, 

 August 9th, after Dr. Adalbert Seitz had discussed the 

 problem, " How does the Insect see the World]" and Prof. 

 V, L. Kellog (U.S.A.) had read a paper on " Distribution and 

 Species-forming among Ectoparasites," the President reviewed 

 the whole proceedings of the Congress, and was given a hearty 

 and unanimous vote of thanks for his address, and for his 

 services. It was then resolved that the next meeting of the 

 Congress should be held at Vienna with Dr. Anton Handlirsch 

 as President. 



Meanwhile, during the week members of the Congress were 

 entertained by Wadham, New College, Magdalen, and 

 Merton, and an excellent cafe was erected in a large tent in 

 the Warden's garden at the first-mentioned College, where 

 luncheon, tea and light refreshments were served. On 

 Wednesday, August 7th, the Congress was entertained by 

 the Rt. Hon. L. V. Harcourt, M.P., at Nuneham House, 

 the party proceeding thither by river ; while another party of 



